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Vliv tepelné elektrárny na životní prostředí
Huvar, Karel
Combustion of fossil fuels in the energy sector is one of the largest sources of air pollution in the Czech Republic. This thesis describes the conversion of heat energy in coal power plant into electricity. It compares the combustion plants of solid fuel. It compares combustion of coal, biomass and solid alternative fuels. It analyzes the resulting pollution from the combustion of solid fuels and its impact on the environment. It also describes the use of cogeneration. There are mentioned the methods of disposal and elimination of harmful substances and waste products of solid fuels combustion and their use. It deals with a preview of the future of classical power engineering in the Czech Republic.
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Návrh vytápění rodinného domu
Zeman, Tomáš
This diploma thesis deals with architectural design of a family house, including its main constructions and assessment of selected details. Two main alternatives are presented: recommended value of a standard heat transfer coefficient and recommended value for passive houses. The work continues with determination of heat loss of the entire object, including calculation of thermal bridges effect. According to the calculated heat loss, there are several kinds of heating proposed. Namely: firewood, natural gas, brown coal, black coal, heat pump and electricity. The thesis also includes building envelope energy labels for both alternatives. The proposed family house is designed as a wooden structure with an emphasis on low heat loss.
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Modernizace spalovacích zařízení v elektrárně Poříčí
Huvar, Karel
The task of this thesis is the introduction to combustion facilities modernization issues of the Poříčí power plant. Summary and content of the valid legislative regulations concerning the coal power plants is provided in the theoretical section. The original combustion technology of the granulations boilers prior the modernization and the present state of the fluidized bed combustion technology after it are described. Differences and specifications of the stated technologies are explained in the practical section. The impact of modernization from the environmental criteria point of view with production comparison of polluting emissions during fluidized bed combustion of coal and biomass is analyzed. The economic criteria of modernization on the emission fee calculations bases during fluidized bed combustion of coal and biomass are calculated too. The main differences in combusting the mentioned fuels are explained. The further possibilities of the solid fuel combustion technology in fluidized bed combustor at Poříčí power plant are discussed.
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Energy-saving family house in Jablunka
Mrnuštík, Petr ; Vrána, Jakub (referee) ; Počinková, Marcela (advisor)
The bachelor’s thesis focuses on designing a low-energy detached house in village Jablunka. Thesis is divided into two parts, first one is aimed at structural and architectural design, whilst the second one focuses on building services, especially heating with solid fuels. The house is divided into a two-storey and a single-storey part. Ground floor includes master bedroom, utility room and mainly open-plan living room connected to kitchen which opens onto a deck and garden. First floor then includes two bedrooms and study. Both floors have their own bathrooms with separate toilets. Structural system is designed as masonry walls from aerated concrete blocks, which are transferring load onto plain concrete foundation strips. Floor slab is to be made of reinforced concrete. Two-storey part is covered by prefabricated rib–and–filler gable roof with 15° slope, from aerated concrete fillers and reinforced concrete, the one-storey part has flat roof. Walls are insulated by 140 mm of mineral wool, plinth then by 120 mm of XPS. Ground slab will be insulated by 220 mm of graphite EPS, floor slab is insulated by 40 mm of impact sound insulation from mineral wool and 50 mm of EPS with installation layer. Flat roof is insulated by 220–340 mm of mineral wool with screed to fall function. Gable roof is then insulated by 180 mm PIR panels. Rainwater will be collected and stored in rainwater tank for gardening use, overflow will then lead to drainage blocks, where the water can be absorbed into soil, with overflow into stormwater sewer system. Ventilation is designed equal pressure, mechanical with enthalpy heat recovery exchanger and heating battery covering ventilation losses. Main heating source is solid fuel boiler, storing its energy in 750liter hot water tank, from which is the heat distributed into 200liter domestic hot water tank, ventilation heating battery and heating elements such as convectors, panel and rail radiators. As renewable source of energy is designed photothermal panels which will mainly heat domestic hot water, excess heat will then be stored in hot water tank.
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System for Automatic Heating Control in Holiday Homes
Ježek, Lukáš ; John, Petr (referee) ; Hynek, Jiří (advisor)
The goal of this bachelor thesis was to design and implement a system for controlling heating and water heating in buildings divided into multiple zones with multiple heating sources. Typically larger and older holiday homes such as farmhouses or larger cottages that do not have only one heat source, however, the system will also be applicable to newer buildings. This system can be controlled either remotely or locally. RaspberryPi 4B was chosen as the platform from the IoT sector. This system solves, for example, the integration of a fireplace insert into a heating circuit together with a boiler, combi boiler or other heat source. Of the existing solutions, none allow efficient use of multiple sources with zoning, or the solution is expensive and inefficient. Moreover, the system offers extensibility to other IoT circuits.
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Design of a suitable source for heating a family house
Kallus, Petr ; Lisý, Martin (referee) ; Toman, Filip (advisor)
This Bachelor's thesis deals with the design of a heat source for the family house and what effect the insulation has. The first part of the work is theoretical, where the individual heat sources are dismantled. Advantages, disadvantages and operating principles are dismantled. In the second practical part, heat loss calculations are carried out for an insulated and uninsulated variant. Subsequently, heat sources are selected which are compared from an economic point of view. To sum up, a suitable heat source is selected for the variant with or without an insulation.
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Boilers for solid fuel
Zezulka, Patrik ; Kudela, Libor (referee) ; Baláš, Marek (advisor)
This bachelor thesis deals with the heating of houses with boilers for solid fuels. Thesis is divided into several parts. In the first part is dealt with most common solid fuels, their characteristics, composition and modifications for house heating. The second part is focused on solid fuel boilers, describes chosen boilers, their operation, their advantages and disadvantages. In the last part is economically assessed the suitability of selected solid fuel boilers for heating the model house.
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Modernization of biomass heat plant.
Sedlák, Martin ; Fiedler, Jan (referee) ; Fiedler, Jan (referee) ; Skála, Zdeněk (advisor)
The thesis examines the suitability of a CHP project in Bystřice nad Pernštejnem, a small town in Vysočina region, Czech Republic, which is currently supplied by biomass central heating. It reviews situation and availability of renewable energy sources and opportunities for CHP both in the Czech Republic and in Europe, including the context of current global developments. The opening chapters are followed with the renewable energy project for Bystřice nad Pernštejnem itself. The current technology, availability of biomass fuel for a potential future project, and possible development of energy sources in the town are analysed. Three alternative solutions for the CHP plant are suggested, with proposal for the technology and economic analysis, and possible future steps of the town council are discussed.
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Assessment of investment in heating house
Zdražil, Pavel ; Štelcl, Otakar (referee) ; Baláš, Marek (advisor)
The bachelor´s thesis deals with economic evaluation of investment in insulation and heating and resulting operation of boilers in a family house. The calculation of thermal design power, which is needed for heating, was made according to norm ČSN EN 12831 for the house in actual state without insulation. Further were suggested two options of insulations and modernization of windows, for reduction of heat loss. Then was calculated the thermal design power for the two new options, again according to norm ČSN EN 12831. Next were presented possibilities of heat sources. For the specified family house was chosen a gas boiler in classical and condensing implementation for all three variants of insulation. These all options have made six variants which were compared together and evaluated. In the conclusion were excluded four variants economically disadvantageous and was chosen one of the final two variants as the best suggestion for the specified family house.
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